21,422
21,422 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 11
- Digit product
- 32
- Digital root
- 2
- Palindrome
- No
- Bit width
- 15 bits
- Reversed
- 22,412
- Recamán's sequence
- a(40,995) = 21,422
- Square (n²)
- 458,902,084
- Cube (n³)
- 9,830,600,443,448
- Divisor count
- 4
- σ(n) — sum of divisors
- 32,136
- φ(n) — Euler's totient
- 10,710
- Sum of prime factors
- 10,713
Primality
Prime factorization: 2 × 10711
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- twenty-one thousand four hundred twenty-two
- Ordinal
- 21422nd
- Binary
- 101001110101110
- Octal
- 51656
- Hexadecimal
- 0x53AE
- Base64
- U64=
- One's complement
- 44,113 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵καυκβʹ
- Mayan (base 20)
- 𝋢·𝋭·𝋫·𝋢
- Chinese
- 二萬一千四百二十二
- Chinese (financial)
- 貳萬壹仟肆佰貳拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 21,422 = 1
- e — Euler's number (e)
- Digit 21,422 = 2
- φ — Golden ratio (φ)
- Digit 21,422 = 9
- √2 — Pythagoras's (√2)
- Digit 21,422 = 3
- ln 2 — Natural log of 2
- Digit 21,422 = 1
- γ — Euler-Mascheroni (γ)
- Digit 21,422 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 21422, here are decompositions:
- 3 + 21419 = 21422
- 31 + 21391 = 21422
- 43 + 21379 = 21422
- 103 + 21319 = 21422
- 109 + 21313 = 21422
- 139 + 21283 = 21422
- 211 + 21211 = 21422
- 229 + 21193 = 21422
Showing the first eight; more decompositions exist.
UTF-8 encoding: E5 8E AE (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.83.174.
- Address
- 0.0.83.174
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.83.174
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 21422 first appears in π at position 404,632 of the decimal expansion (the 404,632ordinal-suffix:nd digit after the integer 3).
Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.